ABSTRACT
Purpose: Given that there was inconsistent results about relation of hamstring muscle flexibility and pelvic tilt and lumbar cure, the current study purpose was to examine the relationship between the lumbar lordotic curve and hamstring muscle tightness in adults.
Methods: In this study, lumbar curve angle was measured by bubble inclinometer, and Hamstrings muscles tightness was measured with a standard goniometer (using active knee extension test technique), in 40 males (17) and females (23) subjects with mean age of 39 years not complaining from structural abnormalities of the spine or knee region.
Results: this study found that there was a non-significant correlation between lumbar lordotic angle and hamstring muscle tightness (spearman correlation coefficient (rho)=0.2, P value=0.12).
Conclusion: lumbar lordotic angle not significantly correlates with hamstring muscle tightness. This may underestimate the importance of hamstring muscle stretching exercises in treating patients complaining with mechanical low back pain.
Keywords: lumbar lordotic angle; inclinometer; hamstrings muscle tightness; correlation study design.